1) conversion timing
2) time sequential sampler
3) time step sampling
The frequency of the weak signal was lowered by using time step sampling and the noise going with large frequency weak signal was restrained intensively by the stochastic resonance of nonlinear bistable system,meanwhile,the periodic signal was stood out from the heavy noise background.
4) sequential equivalent time sampling
Design of sequential equivalent time sampling based on double AD9501 in series;
5) sampling program
Design of sampling program for CSJ-B long spaced sonic logging.;
6) sampling sequence number
This paper briefly analyzes some kinds of general synchronous adjustment methods, and puts forward a kind of synchronous adjustment method based on sampling sequence number, and carries out the precision analysis for the method.